Heating technics
Heating engineering describes the various technical possibilities for heating enclosed spaces.
The physical fundamentals of heating engineering are indispensable for the understanding of heating systems.
![HL 101](/images/datasheet/402/HL-101-Thermal-expansion-training-panel-preview-gunt-402-foto_totale.jpg)
Investigation of thermal expansion of different pipe sections (PVC, PE, Cu, steel)
Learning objectives/experiments
- thermal expansion of different materials such as PVC, PE, copper and steel
- determination of thermal expansion coefficients and the expansion force
- measurement of pipe elongation
- effect of varying pipe diameter
- expansion compensator
![HL 104](/images/datasheet/405/HL-104-Temperature-measurement-training-panel-preview-gunt-405-foto_totale.jpg)
Investigation of four different temperature measuring methods
Learning objectives/experiments
- function, type of construction and applications of bimetallic dial thermometers
- function, type of construction and applications of liquid expansion thermometers, resistance thermometers and thermocouples
- measuring precision, sensitivity and measuring errors of the different thermometers
- installation methods, installation errors and response
![HL 102](/images/datasheet/403/HL-102-Installation-technology-losses-in-different-pipes-preview-gunt-403-foto_totale.jpg)
Investigation of the pressure difference in four equal-length pipe sections made of different materials
Learning objectives/experiments
- investigation of the pressure losses of flow through pipes
- measurement of the pressure differential on different pipe sections
- influence of various pipe diameters
- influence of different materials and surface roughness
- effect of the flow velocity
….
![HL 113](/images/datasheet/417/HL-113-Installation-technology-losses-in-valves-and-fittings-preview-gunt-417-foto_totale.jpg)
Investigation of the pressure loss of standard valves and fittings
Learning objectives/experiments
- pressure losses in valves and fittings
- measuring the pressure difference
- effect of the valve orifice shape on the pressure loss
- effect of the flow velocity
- determination of resistance coefficients
….
![HL 103](/images/datasheet/404/HL-103-Installation-technology-losses-in-pipe-bends-preview-gunt-404-foto_totale.jpg)
Investigation of the pressure loss at pipe elements with different changes in pipe direction and materials
Learning objectives/experiments
- flow measurement
- differential pressure measurement
- effect of flow and surface roughness
- effect of the flow velocity
- effect of changes in pipe direction
![HL 111](/images/datasheet/415/HL-111-Installation-technology-losses-in-straight-pipes-preview-gunt-415-foto_totale.jpg)
Determining the pressure loss in an open pipe section
Learning objectives/experiments
- hydrostatic pressure
- flow pressure
- pressure loss
- representation of pressure curves
![HL 210](/images/datasheet/419/HL-210-Installation-technology-losses-in-a-pipe-system-preview-gunt-419-foto_totale.jpg)
Investigation of pressure losses at contractions, pipe angles, pipe bends, valves and fittings and pipe elements
Learning objectives/experiments
- pressure curve in a closed pipe system with circulation pump
- influence of pipe diameter, flow velocity, change in cross-section and pipe fittings on the pressure losses
- determination of pump characteristics, system characteristics and the operating point
![HL 105](/images/datasheet/406/HL-105-Three-way-mixing-valve-training-panel-preview-gunt-406-foto_totale.jpg)
Effect of mixing ratio on feed flow and circulating flow temperature
Learning objectives/experiments
- function and operating behaviour of a three-way mixing valve
- effect of mixing ratio on feed flow or circulating flow temperature
- effect of mixer setting on the flow rate
- in conjunction with other training panels in the HL 100 series, it is possible to set up a complete heating system.
![HL 106](/images/datasheet/407/HL-106-Four-way-mixing-valve-training-panel-preview-gunt-407-foto_totale.jpg)
Effect of mixing ratio on feed flow and circulating flow temperature
Learning objectives/experiments
- function and operating behaviour of a four-way mixing valve
- effect of the mixing ratio on feed and circulating flow temperature
- effect of mixer setting on the flow rate
- in conjunction with other trainers in the HL 100 series, it is possible to set up a complete heating system.
![HL 107](/images/datasheet/408/HL-107-Circulating-pumps-training-panel-preview-gunt-408-foto_totale.jpg)
Series and parallel operation of two pumps
Learning objectives/experiments
- pump characteristics at varying speeds
- determination of pipework characteristics and operating points
- series operation of circulating pumps
- parallel operation of circulating pumps
- comparison of experiment and calculation
….
![HL 110](/images/datasheet/414/HL-110-Expansion-vessel-training-panel-preview-gunt-414-foto_totale.jpg)
Displacement volume of an expansion vessel as a function of the pressure
Learning objectives/experiments
- function and operation of a diaphragm expansion vessel
- displacement volume of an expansion vessel as a function of the pressure
![HL 109](/images/datasheet/413/HL-109-Safety-devices-training-panel-preview-gunt-413-foto_totale.jpg)
Function of safety valves against excess pressure and excess temperature
Learning objectives/experiments
- function of safety valves
- function and layout of a system of safety devices
- function of a thermal discharge safety device
![HL 112](/images/datasheet/416/HL-112-Radiator-training-panel-preview-gunt-416-foto_totale.jpg)
Familiarisation with a hot water heating system
Learning objectives/experiments
- hydronic balancing of radiators
- determination of the heat emitted
- determination of pipework characteristics for different operating conditions
- in conjunction with other training panels in the HL 100 series, it is possible to set up a complete heating system.
![HL 108](/images/datasheet/409/HL-108-Domestic-heating-circuit-training-panel-preview-gunt-409-foto_totale.jpg)
Model of a central heating system with radiators, circulating pump and four-way mixing valve
Learning objectives/experiments
- familiarisation with a central heating system and its components
- hydronic balancing of radiators
- function and operating behaviour of a circulating pump
- function and operating behaviour of a heating controller
- function and operating behaviour of a four-way mixing valve
Energy-efficient plant technology also leads to great product diversity in heating engineering. We offer a comprehensive selection of different heating systems.
![HL 620](/images/datasheet/448/HL-620-Domestic-heating-system-control-training-panel-preview-gunt-448-foto_totale.jpg)
Operation of a modern heating controller
Learning objectives/experiments
- operation of a modern heating controller
- temperature setting
- operating characteristics
![HL 630](/images/datasheet/449/HL-630-Efficiency-in-heating-technology-preview-gunt-449-foto_totale.jpg)
Basic principles of energy efficient heating technology with a computer-supported learning process
Learning objectives/experiments
- familiarisation with a heating circuit
- familiarisation with temperature control
- two-point controller
- PID controller
- recording of step response
….
![HL 305](/images/datasheet/421/HL-305-Hydronic-balancing-of-radiators-preview-gunt-421-foto_totale.jpg)
Hydronic balancing of a heating system: three heating subcircuits with radiators, thermostatic valves and circulation pump
Learning objectives/experiments
- variable pipework resistance
- familiarisation with a preset balancing valve
- familiarisation with a preset thermostatic valve
- familiarisation with a differential pressure overflow valve
![ET 202](/images/datasheet/182/ET-202-Principles-of-solar-thermal-energy-preview-gunt-182-foto_totale.jpg)
Determining characteristic parameters of a solar thermal system; model fitted with artificial radiation source
Learning objectives/experiments
- design and operation of a simple solar thermal system
- determining the net power
- energy balance on the solar collector
- influence of illuminance, angle of incidence and flow rate
- determining efficiency curves
….
![ET 202.01](/images/datasheet/1738/ET-202.01-Parabolic-trough-collector-preview-gunt-1738-foto_totale.jpg)
Function and operating behaviour of a parabolic trough collector, accessorie for ET 202
Learning objectives/experiments
- focusing solar radiation with a parabolic trough mirror
- optical concentration factor
- conversion of radiant energy into
heat - losses in thermal solar collectors
….
![ET 203](/images/datasheet/1753/ET-203-Parabolic-trough-collector-with-solar-tracking-preview-gunt-1753-foto_totale.jpg)
Function and operating behavior of a parabolic trough collector, astronomical and sensor-based sun tracking, system control via PLC
Learning objectives/experiments
- focusing of solar radiation with a parabolic trough mirror
- optical concentration factor
- DNI: Direct Normal Irradiance
- sensor-based sun tracking
- astronomical sun tracking
….
![HL 313](/images/datasheet/423/HL-313-Domestic-water-heating-with-flat-collector-preview-gunt-423-foto_totale.jpg)
Demonstration of the conversion of the sun's radiation energy into heat and the storing of that heat, operating the solar controller via web browser
Learning objectives/experiments
- familiarisation with the functions of the flat collector and the solar circuit
- determining the net power
- relationship between flow and net power
- determining the collector efficiency
- relationship between temperature difference (collector/environment) and collector efficiency
![HL 300](/images/datasheet/420/HL-300-Central-heating-system-preview-gunt-420-foto_totale.jpg)
Function and operating behaviour of a hot water heating system with digital heating controller
Learning objectives/experiments
- familiarisation with the components of a modern heating system and their function
- operating behaviour of a digitally controlled heating circuit with three-way mixing valve
- operating behaviour of a digitally controlled heating circuit with four-way mixing valve
- investigations on a plate heat exchanger operated in counterflow
- investigation of pressure loss on different valves and fittings
….
![HL 353](/images/datasheet/438/HL-353-Hot-water-generator-preview-gunt-438-foto_totale.jpg)
Setup of a complete domestic heating system together with HL 353.01 and/or HL 353.02
Learning objectives/experiments
- setup of a hot water heating system for room heating
- function and design of commercially available components
- boiler with oil burner, burner control and safety devices
- measurement of differential pressures and temperatures
….
![HL 353.01](/images/datasheet/439/HL-353.01-Comparison-of-different-heating-types-preview-gunt-439-foto_totale.jpg)
Two independent heating circuits: floor heating or forced convector with fan and two radiators
Learning objectives/experiments
- design of a floor heating with controller and actuator
- temperature-led heating controller (outside temperature) with three-way mixing valve
- design of a room heating system with radiators
- thermostatic valve
- one-pipe radiator valve
….
![HL 353.02](/images/datasheet/440/HL-353.02-Heat-distribution-and-control-in-heating-systems-preview-gunt-440-foto_totale.jpg)
Two independent heating circuits with control devices: heating circuit with one subcircuit and with two subcircuits
Learning objectives/experiments
- design of a room heating system with controller and actuator
- temperature-led heating controller (outside temperature) with three-way mixing valve
- simulator for varying outside temperature
- function and design of a room heating system divided into sections
- hydronic balancing of heating circuits with multiple radiators
….
![HL 350](/images/datasheet/432/HL-350-Oil-burner-demonstrator-preview-gunt-432-foto_totale.jpg)
Heating boiler with viewing window for observing the flame
Learning objectives/experiments
- layout and operating behaviour of an oil burner
- operation of a heating boiler with an oil burner
- effect of burner setting on combustion and on the flame
- temperature measurements in different areas of the combustion chamber
- oil pressure measurements on the burner with observation of the effects of changes on the flame
….
![HL 351](/images/datasheet/433/HL-351-Domestic-heating-boiler-preview-gunt-433-foto_totale.jpg)
Heating boiler with an oil burner; hot water generator for other trainers from the HL series
Learning objectives/experiments
- function of an oil burner
- operation of a heating boiler with an oil burner
- burner adjustment during operation
- temperature measurements in different areas of the combustion chamber
- calculation of the heating capacity of a heating boiler
….
![HL 352](/images/datasheet/434/HL-352-Test-stand-for-oil-natural-gas-and-propane-gas-burners-preview-gunt-434-foto_totale.jpg)
Design and operating behaviour of a heating boiler with hot water storage
Learning objectives/experiments
- design and operating behaviour of a heating boiler
- comparison of burners (3 different burners available as accessories)
- changes in settings during operation with observation of the effects on the flame pattern
- temperature measurements in different areas of the combustion chamber
- oil pressure measurements on the burner with observation of the effect on the flame pattern
….
![HL 860](/images/datasheet/455/HL-860-Exhaust-gas-analyser-preview-gunt-455-foto_totale.jpg)
Easy to operate gas analysis device
Learning objectives/experiments
- measurement of residual oxygen in the flue gas of heating systems
- measurement of carbon monoxide
- measurement of nitrogen oxide
- measurement of flue gas and combustion air temperature
![HL 360](/images/datasheet/443/HL-360-Oil-tank-safety-trainer-preview-gunt-443-foto_totale.jpg)
Investigation of tank safety devices and their function
Learning objectives/experiments
- oil tank with stipulated outlet, filling and safety devices
- standards, technical rules, legal requirements and regulations for the storage of heating oil
- function of tank protection devices
- filling an oil tank
- drawing oil from a tank
![HL 392C](/images/datasheet/444/HL-392C-Safety--control-in-heating-systems-preview-gunt-444-foto_totale.jpg)
Function and operating behaviour of safety valve, safety pressure cut-out, temperature controller, flow switch and much more
Learning objectives/experiments
- function and operating behaviour of
- safety valve
- quick-action ventilating valve
- safety pressure cut-out
- thermal discharge safety device
….
![HL 510](/images/datasheet/446/HL-510-Domestic-gas-supply-training-panel-preview-gunt-446-foto_totale.jpg)
Simulation of leaks in pipes
Learning objectives/experiments
- simulation of different leaks
- demonstration of leak detection
- working on gas pipes
- testing before and after gas connection in accordance with regulations
![HL 500](/images/datasheet/445/HL-500-Instantaneous-gas-heater-preview-gunt-445-foto_totale.jpg)
Methods of gas burner adjustment; simulation of twelve faults
Learning objectives/experiments
- gas burner adjustment by volumetric method
- nozzle pressure method for gas burner adjustment
- fault finding
![HL 358](/images/datasheet/442/HL-358-Forced-air-gas-burner-training-panel-preview-gunt-442-foto_totale.jpg)
Nominal load adjustment and fault finding on a gas burner; hazard-free due to operation with air
Learning objectives/experiments
- familiarisation with components for heating systems
- starting a gas burner
- nominal load adjustment on a gas burner
- fault-finding and fixing
- calculation of the gas flow rate / operating volume
![HL 356](/images/datasheet/441/HL-356-Demo-unit-gas-burner-preview-gunt-441-foto_totale.jpg)
Electronic simulation of the operation of a forced air gas burner
Learning objectives/experiments
- specification of boiler temperature at the thermostat (reference variable) using potentiometer
- specification of boiler water temperature using potentiometer
- representation of flame aspect and burner operating state displays
- possible faults (activated using pushbuttons):
- air pressure control device
….
- air pressure control device
![HL 530](/images/datasheet/447/HL-530-Training-panel-function-of-gas-heater-preview-gunt-447-foto_totale.jpg)
Functioning of a typical combination boiler; separate circuits for room heating and domestic water heating
Learning objectives/experiments
- familiarisation with the functioning of a combination boiler
- understanding of a heating circuit
- domestic water heating
- measurement of gas pressures on a gas boiler
- determination of power and efficiency